Amazon Watchlist — Price, BSR & Stock Tracker

Track price, Best Sellers Rank, and stock status for any Amazon product — automatically, every time you check on it. Amazon Watchlist adds a simple "+ Add to Watchlist" button to any product page. Once tracked, it silently records a snapshot each time you revisit — price, full BSR (both parent category and sub-category ranks), and stock status — building a real history from your normal browsing. HONEST ABOUT WHAT THIS IS This isn't 24/7 background monitoring — no browser extension can do that without its own server. What it does do: give you a genuine price/rank/stock history built from your own visits, with trend arrows showing what changed since last time you checked. WORKS ACROSS LOCALES Handles European price formats (1.234,56 €) and multi-language BSR labels correctly — built and tested against real German (amazon.de) data. PRIVACY Nothing is sent anywhere. Your watchlist and its history live only in your browser's local storage. Export any product's full history to CSV whenever you want. Full privacy policy:https://sites.google.com/view/amazon-watchlist-bsr/home